CN212501423U - Plastic bag discharging machine - Google Patents

Abstract

The utility model discloses a plastic bag discharging machine, its characterized in that: the bag arranging device comprises a bag arranging rod and a bag arranging driving mechanism and is arranged at the front part of the frame; the stop lever device comprises a stop lever and a lifting mechanism and is arranged behind the bag arranging device; the clamping plate device comprises a clamping plate and a reset mechanism, and is arranged behind the stop lever device. The plastic bags are arranged at the front side of the blocking rod by the bag arranging rod, the blocking rod retracts downwards and then winds in front of the plastic bags, then the blocking rod extends out and pushes the plastic bags backwards, and the plastic bags are squeezed and clamped between the blocking rod and the clamping plate, so that the plastic bags are orderly arranged and shaped, and the packaging is convenient.

Description

Plastic bag discharging machine

Technical Field

The utility model relates to a plastic bag discharging machine.

Background

The utility model relates to a plastic bag discharging machine for the plastic bag that will fold and tie up discharges, so that the dress chartered plane snatchs the dress package, perhaps makes things convenient for the manual work to carry out manual dress package. The plastic bags include flat bags, vest bags, shopping bags, and the like. The plastic bags are generally automatically processed and produced by a bag making machine, and in order to be convenient for storage, transportation, sale and use, the plastic bags are generally folded and bundled into long strips through multiple times of folding of a plastic bag folding and bundling machine, then the bundled plastic bags are discharged in a bundle and then stacked into packaging bags (woven bags). The packing work of packing the plastic bags into the packing bags is generally finished manually, and the problems of high labor intensity, irregular discharge and the like exist. Some plastic bag bagging machines have also recently appeared, for example, application publication numbers: CN110861795A discloses a bagging machine. No matter the traditional manual packing or mechanical packing is carried out, dozens of bundles of plastic bags are manually put together, and are extruded by two hands to the middle to form a row, and then the plastic bags are stacked in a packing bag (woven bag) row by row. It has the problems that: the plastic bags which are just folded and bundled are not orderly discharged, the gas in the interior of the plastic bags is more, the body shape elasticity is large, the volume expansion capacity is not large when the plastic bags are just filled into the woven bags, the plastic bags can be thinned and shrunk after being stored and transported for a long time after being compacted, the whole package is fluffy, the plastic bags have a space which shakes back and forth in the woven bags in the transportation process, and friction exists between the shaking and shaking of the plastic bags, so that the plastic bags deform and wrinkle; and the discharge work is finished manually, which wastes time and labor and has low efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a plastic bag arranging machine is arranged behind a plastic bag binding machine and is used for arranging plastic bags bound by the binding machine so as to facilitate manual work or a packaging machine to package the arranged plastic bags into packaging bags.

In order to realize the technical purpose, the technical proposal of the utility model is that: a plastic bag discharging machine characterized in that: the bag discharging device comprises a rack, the rack is further provided with a bag discharging device, a stop lever device and a clamping plate device, the bag discharging device comprises a bag discharging lever and a bag discharging driving mechanism and is arranged in the front of the rack, the stop lever device comprises a stop lever and a lifting mechanism and is arranged behind the bag discharging device, and the clamping plate device comprises a clamping plate and a reset mechanism and is arranged behind the stop lever device.

The bag arranging rod is connected to the bag arranging driving mechanism and can swing back and forth or translate back and forth to push the plastic bag to the front or the back of the baffle.

As a preferred technical scheme, the bag arranging rods are arranged in two or more strips and are arranged on the rotating shaft at intervals, one end of the rotating shaft is connected with the swinging mechanism, and the swinging mechanism comprises a swinging cylinder or a rocker arm, a cylinder and the like.

The stop lever is connected to the lifting mechanism and corresponds to the bag arranging lever in a front-back staggered manner, the stop lever is driven by the lifting mechanism to lift up and down, the bag arranging lever can push plastic bags to the back of the stop lever conveniently after the stop lever descends, and the discharged plastic bags are stopped at the back to prevent the plastic bags from being pushed back when the stop lever ascends, and the plastic bags can be pushed backwards.

As a preferable technical scheme, the lifting mechanism is a guide rod cylinder, and the stop lever is arranged on a guide rod seat of the guide rod cylinder.

As a preferable technical scheme, a translation mechanism is further connected to the lifting mechanism and used for driving the blocking rod to translate back and forth, the blocking rod moves backwards after being lifted, the discharged plastic bag can be further pushed backwards, and the plastic bag is clamped and shaped in the pushing process; the stop lever moves forwards after descending, and moves the next plastic bag after winding back to the front.

As a further improvement, the bag discharging driving mechanism comprises a multi-position air cylinder, and the multi-position air cylinder is an air cylinder capable of extending out for multiple strokes, or is replaced by two air cylinders connected in series. The bag discharging rod is driven by the multi-position cylinder to move backwards to a first position, so that the plastic bag is discharged to the front side of the blocking rod, after the push rod retracts downwards, the multi-position cylinder is opened for a second stroke, the bag discharging rod is driven to continue to push the plastic bag backwards for a certain distance, the front side of the plastic bag is positioned behind the position corresponding to the rear side of the blocking rod upwards, and after the blocking rod extends upwards to block the plastic bag, the first stroke and the second stroke of the multi-position cylinder are released, so that the blocking rod is driven to reset forwards. This embodiment may omit the mechanism for driving the bar device to move back and forth.

The clamping plate device comprises a clamping plate and a reset mechanism, the clamping plate and the reset mechanism are arranged behind the stop lever device, and the plastic bags are arranged between the clamping plate and the stop lever.

The clamping plate can be a plate-shaped body or a plurality of upright rod-shaped bodies which are arranged at intervals, and the interval gap between the rod-shaped bodies is equivalent to the gap of the clamping plate, so that the discharged plastic bags can be taken away conveniently. The clamping plate can move backwards under the action of the bag arranging device or the blocking rod device, and the blocking rod has certain damping in the process of moving backwards, and the damping and the bag arranging device or the blocking rod device jointly act to clamp and extrude the plastic bag, so that the plastic bag bundled into a long strip shape tends to be in a plate-shaped state; after the plastic bag is taken away manually or by a mechanical arm, the clamping plate moves forwards to reset under the action of the resetting mechanism of the clamping plate.

The clamping plate device comprises a clamping plate and a reset mechanism.

As a preferable technical scheme, the reset mechanism is a guide rod cylinder. The guide rod cylinder is arranged in front and at the back, the splint is connected to a guide rod seat of the cylinder, an air pipe is connected to an air port at the back end of the guide rod cylinder, and the resistance of the splint moving backwards is adjusted by adjusting the displacement of the air port through a throttle valve so as to form damping; when the rear end air port leads compressed gas through the electromagnetic valve, the cylinder rod drives the clamping plate to move forward to realize reset.

As another embodiment of the reset mechanism, the reset mechanism is a conveying belt mechanism, the conveying belt mechanism comprises a front conveying shaft and a rear conveying shaft which are arranged in parallel, two or more conveying belts are arranged on the two conveying rollers at intervals, a ratchet wheel is arranged at one end of one of the conveying rollers, the ratchet wheel is connected with a motor, and the clamping plate is arranged on the conveying belt. When the clamping plate moves backwards under the action of the bag discharging device or the stop lever device, the conveying belt is also driven to move backwards, at the moment, because the ratchet wheel is driven in a single direction, the power connection between the motor and the conveying roller is disconnected, the motor cannot rotate, the clamping plate can drive the conveying belt to move backwards together when moving backwards, certain resistance is generated to form damping, and after discharged plastic bags are taken away, the motor rotates to enable the conveying belt to move forwards through the ratchet wheel, so that resetting is realized.

As another embodiment of the resetting mechanism, the clamping plate is arranged on the inclined track in a sliding mode, the front part of the track is low, the rear part of the track is high, the clamping plate can have downward and forward thrust by utilizing the self weight of the clamping plate or arranging a balance weight on the clamping plate, and the thrust can generate damping; when the discharged plastic bags are taken away, the clamping plates can move forwards to reset by means of self weight. The embodiment has simple structure, does not need a driving mechanism and has simple manufacturing cost.

As the preferred technical scheme, the clamping plate is provided with the gap, or the clamping plate is formed by arranging a plurality of rod-shaped bodies at intervals, and the gap formed between the rod-shaped bodies is equal to the gap, so that a manipulator or a hand can conveniently grab the plastic bag.

As a preferred technical scheme, the rack is provided with an abdicating notch, and the bag discharging rod and the blocking rod are arranged in the abdicating groove to swing back and forth.

Compared with the prior art, the utility model following beneficial effect has: because the baffle plate has certain resistance and damping when moving backwards, certain extrusion and clamping force are formed between the baffle plate and the plastic bag after the plastic bag is discharged in bundles, so that the original irregular plastic bag is extruded into a more regular rectangular plate-shaped body, and the continuous extrusion with longer time, larger area and higher pressure causes the gas in the plastic bag and in each layer to be slowly extruded, so that the shape of the plastic bag is more shaped; the volume is reduced and the weight is reduced after the extrusion, and the capacity of the packaging bag is increased. The plastic bags are arranged to be in an upright state, are stacked and arranged in the packaging bags in order, and are attractive and elegant in appearance and not easy to deform.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic top view of the first embodiment;

FIG. 3 is a left side schematic view of the structural principle of the first embodiment;

FIG. 4 is a schematic left side view of the construction of a splint according to an embodiment;

fig. 5 to 9 are schematic diagrams of the working principle and working steps of the first embodiment;

FIG. 10 is a schematic structural view of the second embodiment;

FIG. 11 is a schematic top view of the second embodiment;

fig. 12 to 15 are schematic diagrams of the working principle and working steps of the second embodiment;

FIG. 16 is a schematic structural view of the third embodiment;

fig. 17 is a schematic diagram of the operation principle of the third embodiment.

In the drawings, 1- -a gantry; 11- -bag transfer robot; 12- -bag-conveying push plate mechanism; 2- -bag arranging rod; 21- -a cylinder; 22- -a rocker arm; 23- -a rotating shaft; 24- -guide rail; 25- -Multi-position Cylinder; 26- -a slider; 27- -connecting plate; 3-gear lever; 31- -guide rod cylinder; 32-a guide rod seat; 33- -beam; 34- -air cylinder; 35- -a guide rail; 36- -a slider; 4- -splint; 40- -splint notch; 41- -guide rod cylinder; 42- -air cylinder; 43- -guide rails; 44- -a cross-bar; 45- -conveyer belt; 46- -a drive shaft; 47- -ratchet; 48- -an electric motor; 49- -a pulley; 5- -plastic bag.

Detailed Description

The structural principle of the present invention will be further described with three embodiments in conjunction with the accompanying drawings. In the present invention, the front side is the left side of the attached drawing 1, and the rear side is the right side of the attached drawing.

In the first embodiment, as shown in fig. 1, 2, and 3: the bag discharging device comprises bag discharging rods 2, a rotating shaft 23, rocker arms 22 and air cylinders 21, wherein the rotating shaft 23 is rotatably arranged on two sides of the rack 1, the two bag discharging rods 2 are arranged on the rotating shaft 23 at intervals, the rocker arms 22 are arranged at one ends of the rotating shaft 23, the air cylinders 23 are arranged at the other ends of the rocker arms 22, and the other ends of the air cylinders 23 are arranged on the rack 1; the stop lever device comprises a stop lever 3, the lifting mechanism is a guide rod cylinder 31, the lifting mechanism is further connected with a translation mechanism, the translation mechanism comprises a cylinder 34, a guide rail 35 and a slide block 36, the guide rod cylinder 31 is installed on a cross beam 33, the cross beam 33 is installed on the slide block 36, the slide block 36 is slidably installed on the guide rail 35, the cylinder 34 is connected on the cross beam 33, the other end of the cylinder 34 is installed on the rack 1, two stop levers 3 are installed on a guide rod seat 32 of the guide rod cylinder, so that the stop levers 3 correspond to the front bag discharging levers 2 in a front-back staggered manner, namely the movement tracks of the staggered bag discharging levers 2 are not collided with the stop levers; the clamping plate device is arranged behind the gear lever device, the clamping plate device comprises a clamping plate 4 and a reset mechanism, the reset mechanism is a guide rod cylinder 41, the guide rod cylinder 41 is arranged on the rack 1, and the clamping plate 4 is arranged on a guide rod seat of the guide rod cylinder 41, as shown in fig. 4: the clamping plate 4 is a plate-shaped body, the upper part of the clamping plate 4 is provided with a plurality of notches 40, a plurality of strip-shaped bodies are formed at the upper part of the clamping plate, the lower part of the clamping plate 4 is arranged on the guide rod seat, and the upper part of the clamping plate 4, namely the strip-shaped bodies, extends upwards above the machine frame 1.

The working process of the first embodiment is as follows: as shown in fig. 5 to 9, wherein fig. 9 is a left schematic view of the operation principle, when the bag conveying robot 11 of the conveying mechanism of the plastic bag binding machine places the plastic bag 5 on the rack position between the bag discharging rod 2 and the blocking rod 3, the state shown in fig. 5 is formed; then, the air cylinder 21 opens the driving rocker 22 to make the rotating shaft 23 drive the bag discharging rod 2 to swing backwards, so as to discharge the plastic bag 5 at the front side of the gear rod 3, and the swing of the bag discharging rod 2 can make the inclined plastic bag be straightened, so as to form the state shown in fig. 6; then, the guide rod cylinder 31 opens to drive the stop rod 3 to move downwards and retract to the lower part of the plastic bag 5, then the cylinder 34 opens, the driving beam 33 and the guide rod cylinder 31 move forwards along the guide rail 35, and the stop rod 3 is wound forwards to the position corresponding to the upper part and the lower part of the front surface of the plastic bag 5, so that the state shown in fig. 7 is formed; then, the guide rod cylinder 31 drives the guide rod to rise, so that the gear rod 3 corresponds to the plastic bag 5 in the front-back direction, and the state is as shown in fig. 8 and 9, and fig. 9 is a left schematic diagram of the working principle of the embodiment; then, the air cylinder 34 releases the driving clamping plate 4 to push the plastic bag 5 backwards, in the pushing process, a certain damping, namely resistance, is generated when the air cylinder rod of the guide rod cylinder 31 retracts due to the adjustment of the air displacement of the exhaust regulating valve, the plastic bag 5 is subjected to certain clamping force and extrusion between the guide rod 3 and the clamping plate 4 due to the damping, the air in the plastic bag 5 and between the plastic bags is extruded and exhausted, the plastic bag with the originally irregular shape is pressed into a rectangular plate shape by extrusion, and the plastic bag 5 is stable and shaped by the extrusion; when the number of the plastic bags 5 discharged between the stop rods 3 and the clamping plates 4 reaches a predetermined number, the plastic bags are taken away through the gaps 40 of the clamping plates and the gaps between the two stop rods 3 by a mechanical arm or a manual work, after the plastic bags 5 are taken away, the guide rod air cylinders 41 are opened to drive the clamping plates 4 to move forwards, so that the resetting of the clamping plates 4 is realized, and the working process of the first embodiment is completed.

Example two, as shown in fig. 10 and 11: the second embodiment is different from the first embodiment mainly in that: the bag arranging driving mechanism of the second embodiment is a multi-position air cylinder 25, the multi-position air cylinder 25 is formed by connecting two air cylinders in series, and the bag arranging rod 2 is arranged on the guide rail 24 in a sliding way; the guide rod cylinder 31 is arranged on the frame, and a translation mechanism is omitted; the reset mechanism of the clamping device is a conveyor belt mechanism, and the clamping plate 4 is arranged on a conveyor belt 45. Two transmission shafts 46 are rotatably arranged on a machine frame 1 in a front-back parallel mode, two belt pulleys 49 are respectively arranged on each transmission shaft 46, a conveying belt 45 is respectively arranged on the belt pulleys 49 on the front transmission shaft 46 and the rear transmission shaft 46, one end of one transmission shaft 46 at the rear side is provided with a ratchet wheel 47, the ratchet wheel 47 is connected with a motor 48, the motor 48 is arranged on the machine frame 1, a guide rail 24 is arranged between the two conveying belts 45 at the front part of the machine frame 1 in a front-back mode, a sliding block 26 is arranged on the guide rail 24 in a sliding mode, an L-shaped connecting plate 27 is arranged, two bag discharging rods 2 are arranged on the connecting plate 27, the bag discharging rods 2 are arranged on the guide rail 24 in a sliding mode through the connecting; the guide rod cylinder 31 is mounted on the frame 1.

The specific working process of the second embodiment is as follows: as shown in fig. 12 to 15: when the bag transferring manipulator 11 places the plastic bag 5 between the bag discharging rod 2 and the blocking rod 3, the lower side thereof is positioned on the left and right conveyor belts 45, forming the state shown in fig. 12; then, the first position of the multi-position cylinder is opened, the bag discharging rod 2 is driven to push the plastic bag 5 backwards to the front side of the stop rod 3 along the guide rail 24, and the state shown in fig. 13 is formed; then, the guide rod cylinder 31 opens the driving gear rod 3 and moves downwards to the lower part of the upper layer of the conveying belt 45, and the state shown in fig. 14 is formed; then, the second stroke of the multi-position cylinder 25 is opened, the bag discharging rod 2 is driven to further push the plastic bag 5 backwards, in the process of pushing the bag discharging rod 2 backwards, the rotating shaft 46 is connected with the motor 48 through the ratchet wheel 47, the backward movement of the conveying belt 45 cannot drive the motor 48 to rotate, but the clamping plate 4 pushes the conveying belt 45 to walk with resistance, certain damping exists, the backward pushing of the bag discharging rod 2 enables the clamping plate 4 to move backwards by overcoming the resistance of the conveying belt 45, the plastic bag 5 is clamped between the bag discharging rod 2 and the clamping plate 4 in the moving process, the plastic bag is extruded and shaped, after the bag discharging rod 2 pushes backwards to the back of the blocking rod 3, the guide rod cylinder 31 drives the blocking rod 3 to lift up, the plastic bag 5 is blocked backwards, and rebound is prevented, and the state shown in fig. 15 is formed; then, both strokes of the multi-position air cylinder 25 are released, and the bag discharging rod returns and resets; when the discharged plastic bags 5 reach a predetermined number, the plastic bags 5 discharged together are taken away manually or by a robot; after the discharged plastic bag 5 is taken away, the motor 48 drives the ratchet wheel 47 to rotate backwards, so as to drive the conveyer belt 45 to move forwards, so that the clamping plate 4 moves to the initial position, and the resetting is realized, and the working process of the second embodiment is completed.

The third embodiment is different from the first embodiment in that: as shown in fig. 16 and 17, the clamp plate 4 is formed by several rod-shaped bodies distributed at intervals on a cross beam 44, a slide block is mounted on the cross beam 44, the slide block is slidably arranged on a guide rail 43, the guide rail 43 is mounted on a machine frame, an air cylinder 42 is mounted on the cross beam 44, and the other end of the air cylinder 42 is mounted on the machine frame.

The working process of the third embodiment is as follows: the plastic bag 5 is conveyed by the bag-conveying push plate mechanism 12 with the side face downward, and when the plastic bag 5 is pushed to the working position by the bag-conveying push plate mechanism 12, the side face of the plastic bag 5 is positioned on the bag-arranging rod 2, and the state shown in fig. 16 is formed; thereafter, the air cylinder 21 opens the driving rocker arm 22 and the rotating shaft to swing the discharging bar 2 backward, and the plastic bag 5 in a flat state is discharged upright to the front side of the stopper bar 3, and the swinging discharging bar has a function of straightening the plastic bag, resulting in a state shown in fig. 17. The working steps and working principle of the next step of the third embodiment are basically the same as those of the first embodiment, and are not described herein again.

Claims (5)

1. A plastic bag discharging machine characterized in that: the bag discharging device comprises a rack, the rack is further provided with a bag discharging device, a stop lever device and a clamping plate device, the bag discharging device comprises a bag discharging lever and a bag discharging driving mechanism and is arranged in the front of the rack, the stop lever device comprises a stop lever and a lifting mechanism and is arranged behind the bag discharging device, and the clamping plate device comprises a clamping plate and a reset mechanism and is arranged behind the stop lever device.

2. The plastic bag discharging machine according to claim 1, wherein: the bag arranging rods are arranged on the rotating shaft at intervals, and one end of the rotating shaft is connected with the swinging mechanism.

3. The plastic bag discharging machine according to claim 1, wherein: the lifting mechanism is also connected with a translation mechanism.

4. The plastic bag discharging machine according to claim 1, wherein: the reset mechanism is a guide rod cylinder.

5. The plastic bag discharging machine according to claim 1, wherein: the clamping plate is provided with a notch.

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